[Bad Zebra]

Definitely work a few games before even considering a camp.

In doing so, he will either find that:
A) He loves it, he's hooked, and wants to learn more and get better or
B) It's not at all what he expected. It's way more complicated and difficult than he imagined and opts to move on.

In my experience, there's not much middle ground. Going to camp before he really knows what to expect will be a big waste of money. The analogy of "Trying to sip water with a fire hose" comes to mind.

Encourage him to try to work as many youth games, middle and jr. high games as he can. A decent mentor will probably benefit him a lot more his first year than a formal camp.